Adhesive-applying mechanism for casing-in machines



AprilZS, 1931. Q SCHRAMM ET L 1,802,354

ADHESIVE APPLYING MECHANISM FOR CASING-IN MACHINES Original Filed Dec. 10, 1929 4 Sheets-Sheet 1 74 //VV[/V 70/1 cwdmm ATTORNEY April 28, 1931- c. SCHRAMM ET AL 1,802,354

ADHESIVE APPLYING MECHANISM FOR CASING-IN MACHINES Original Filed Dec. 10, 1929 4 Sheets-Sheet 2 7 /7 J I J 4 46 49 48 '49 E I I 4 I I 2 I d 2/ 21 6.9 24 26 l I 7 I I I l I i 7/ i I I l 1 /J.3' 1 l 1 I i I i I l I l I I I I I l INVENTORS,

BY Mala/IA;

' ATTORNEY April 28, 1931. c. SCHRAMM ET AL 7 1,802,354

ADHESIVE APPLYING MECHANISM FOR CASING-IN MACHINES Original Filed Dec. 10, 1929 4 Sheets-Sheet 3 d? A BY W 6:2 A},

1 R 6% 6 64 6y O6 ATTORNEY.

April 28, 1931- c. SCHRAMM' ET AL 1,802,354

ADHESIVE APPLYING MECHANISM FOR CASING-IN MACHINES Original Filed Dec. 10, 1929 4 Sheets-Sheet 4 M HTTOR/VEY Fatentecl Apr. 28, 1931 UNITED STATES PATENT OFFICE CARL SCHRAMM, OF WEST HARTFORD, AND ERNEST WAYNE CLARK, OF HARTFORD,

CONNECTICUT, ASSIGNORS TO THE SMYTH MANUFACTURING COMPANY, OF HART- FORD, CONNECTICUT, A CORPORATION OF CONNECTICUT ADHESIVE-APPLYING- MECEANISM FOR CASING-IN MACHINES Original application filed December 10, 1929, Serial No. 413,044. Divided and this application filed May 17,

1930. Serial This invention relates to the adhesive applying mechanism of machines for casing in books, and the subject matter herein described and claimed is divided out from '5" our application for casing-in machine filed December 10, 1929, Serial N 0. 413,044.

In the machine of that application the fillers are fed along a horizontal track and positioned on a saddle, and the cases are 10 fed between backformers to a position above the saddle. The fillers are then lifted to the cases passing upward between means which apply adhesive to their outer leaves, following which the cases are folded against the adhesive coated sides of the fillers.

The object of this invention isto provide a mechanism which can be readily adjusted for various sizes of books, and while capable of rapid operation will apply adhesive to the outer leaves of the fillers as they are carried up, in such quantities and condition that the cases will be smoothly and positively fastened not only to the entire outer surfaces of the filler leaves but at the joints adjacent to the backs.

Fig. 1 is an elevation looking from the rear of the casing-in machine toward the mechanism for operating the adhesive applying means. Fig. 2 is an elevation looking from the side of the machine toward the adhesive applying mechanism. Fig. 3 is a sectional elevation on larger scale of a portion of the adhesive applying mechanism, on the plane indicated by the dotted line 33 on Fig. 4. Fig. 4 is a section on the'plane indicated by the dotted line 44 on Fig. 3. Fig. 5 is a section on the plane indicated by the dotted line 55 on Fig. 3. Fig. 6 is a view similar to Fig. 5 with the parts in different positions. Fig. 7 is a section on the plane indicated by the dotted line 77 on Fig. 5. Fig. 8 is a view looking toward the ends of the adhesive tanks, and a portion of the mechanism for moving them toward and from a'filler. Fig. 9 is a. vertical section through the adhesive tanks and rolls, showing'a filler, an opened case and means for folding a case against the filler. Fig. 10 shows a plan of a case and means for folding it against the adhesive coated sides of a filler.

In the machine of the application referred to the fillers are carried up by bladesthat are attached to an intermittently fed endless chain. As a filler 11.is carried up by a blade 12 it passes between rolls 13 that are moved from each side toward the filler and apply adhesive, preferably paste, to the outer. leaves. The rolls 13 are supplied with paste by rolls 14that are rotated in tanks 15, Fig. 9, the applying rolls 13 and supply rolls 14, being connected at the ends of the tank by intermeshing pinions 16 and gears 17, Fig- 8.

The tanks along their lower edges have flanges 18 that move in tracks 19 in the frame, Figs. 2, 4. The bottoms of the tanks are connected by links 20 with the upper ends of levers 21 'which turn loosely on shafts 22. F astened to the shafts 22 are arms 23 which carry spring plungers 24 and lugs 25'. Studs 26-fastened to the levers 21 project between these plungers andlugs, Figs. 2, 8. hen the shafts 22 are rocked so as to move the tanks toward each other and cause the paste rolls to press against a filler, the plungers cushion the pressure of the rolls-against the filler.

Fastened to the shafts 22 are rockers 27 that have segmental racks 28 which intermesh so'that the shafts are oscillated synchronously and move the tanks uniformly,

Figs. 1, 2. Loose on one of the shafts 22 i is an arm 29 that has a section with a'rack 30 which is engaged by a screw 31 carried by an arm 32 that is fixed to the shaft 22,

Fig. 1. The screw and rack provide an adjustable connection of the arm 29 to the shaft 22. The arm 29 is connected by a link 33 with one end of an angle lever 34 that is fulcrumed on a shaft 35. The other end of the angle lever has a roll 36 that is en,- gaged by a cam 37, Figs. 1, 2. By this means the tanks with the paste rolls are simultaneously moved horizontally toward a filler at the required times for the rolls to apply paste to the outer leaves of the filler, and then moved away to permit a following filler to pass up.

At one end of each of the tanks the gears 17 fastened to the axles of the supply rolls 14 have sockets 88 which receive pins 39 that are carried by the head 40 of a shaft 41, Fig. 4. A disk 42 at the end of a stem 43 engages with these pins and a spring 44 thrusts against this plate to normally cause the ins to enter the sockets and connect the shaft 41 with the gear 17 The outer end of the stem 43 has a button 45, Fig. 4. When this button is pulled out the pins. are with drawn so as to disconnect the gear from the shaft and permit the tank to be removed.

Fastened to each shaft 41 is a worm 46 that is engaged by a worm wheel 47, Figs. 1, 3, 4, which is connected with a shaft 48 so as to rotate therewith but have a longitudinal movement thereon. This connection is made by an arbor 49 that extends through the shaft 48 and at its ends has rolls 50 which occupy slots 51 in blocks 52 which are slidably fitted in slots in the hub 53 of the worm wheel 47, Figs. 3, 4. The bearings for the coupling shafts 41, the worms 4G and the worm wheels 47 are on plates 54 that are mevably supported in ways 55 in the frame, Figs. 2%, 4, so that the shafts 41, worms 46 and worm wheels 47 will be moved in and out with the paste tanks.

The paste applying rolls are normally rotated in the direction of the upward movement of the filler and at the same surface speed, but just preceding the engagement of the rolls with the filler the rolls are given a slight reverse rotary movement in order to accumulate an extra quantity of paste and apply it as they start with the roll against the sides of the filler at the joints 56, Fig. 9, that is, directly under the formed back of the filler.

Loose on the shaft 48 is a pinion 57 to the hub 58 of which is fastened a disk 59 that carries a pawl 60 designed to engage notches in a disk 61, Figs. 3, 5, 6. Projecting from the disk 59 into a groove 62 in the disk 61 is a stud 63, Figs. 5, 6, 7, and extending through the disk (31 are two pins 64 that are normally retracted by springs 65, Fig. 7. The outer ends of these pins bear rolls 66 that engage a cam 67 which is fixed to a bracket 68 t at is fastened to the frame of the machine, Figs. 3, 7. 1

The pinion 57 is engaged by a segmental rack 69 on one end of an angle lever 70, Figs. 1, 2. The other end of this lever is connected by a link 71 with an angle lever 72 that is fulcrumed on the shaft The lever 72 has a roll 73 that is engaged by a cam 74 on the shaft 75, Fig. 2. This cam causes the rack 69 to rotate the pinion 57 forward and back. \Vhen moving forward the pawl 60 engages the disk 61 and rotates the shaft 48, and when moving backward the pawl slides over the disk and shaft 48 remains idle except at the period that the fixed cam 67 pushes in a pin 6-4 so that it will engage with pin 63, Figs. 5, G, 7. At this interval the shaft 48 is given a short reverse movement which gives a slight reverse movement to the paste rolls for the purpose of causing them to accumulate the extra amount of paste which is applied at the joints of the filler.

The filler has a slight dwell as the paste rolls are reversed to apply the extra amount of adhesive to the joints, and then as the fillers are carried up to the cases 76, the sides of the cases are folded against the paste coated sides of the filler by the yokes 77. These yokes are attached to rotatable spindles 78 that are mounted on rails 79 and they are pressed down by springs 80, Figs. 9, 10.

The invention claimed is:

1. Adhesive applying mechanism for casing-in machines, comprising tanks, mechanism for moving the tanks toward and from the path of the fillers, rolls carried by said tanks for applying adhesive to the fillers, and mechanism for rotating said rolls opposite to and then in the same direction as the travel of the fillers, said rollrotating mechanism comprising a cam, a rack oscillated by said cam, a gear engaged by said rack, a shaft on which said gear is mounted, ratchet and pawl means between the gear and shaft for turning the shaft forward, pins and a cam adapted to connect the gear and shaft for turning the shaft backward, and gearing rotated by but movable longitudinally of said shaft connecting the shaft and rolls.

2. Adhesive applying mechanism for casing-in machines, comprising tanks movable toward and from the path of the fillers, rolls carried by said tanks for applying adhesive to the fillers, and mechanism for rotating said rolls comprising a cam, a rack oscillated from said cam, a gear engaged by said rack, a shaft on which said gear 1s loosely mounted, ratchet and pawl means connecting the gear and shaft on the forward movement of the rack, pins and a cam adapted to connect the gear and shaft on the backward movement of the rack, and gears connecting said; shaft and the rolls.

3, Adhesive applying mechanism for casing-in machines, comprising tanks movable toward and from the path of the fillers,

rolls carried. by said tanks for applying adhesive to the fillers, and mechanism for rotating said rolls comprising a cam, a rack oscillated from said cam, a gear engaged by said rack, a shaft on which said gear is loosely mounted, ratchet and pawl means connecting the gear and shaft on the forward movement of the rack, pins rotatablewith said gear, a fixed camcausing said pins to connect the gear and shaft on the backward movement of the rack, and gears connecting said shaft and the rolls.

4. Adhesive applying mechanism for casing-in machines, comprising tanks movable toward and from the ath of the fillers, rolls carried by said ta s for applying adhesive to the fillers, and mechanism for rotating said rolls, an oscillatory rack, a gear engaged by said rack, a shaft on which said gear is loosely mounted, ratchet and pawl means connecting the gear and shaft for turning the shaft forward, a pin connected with the gear, pins connected with the shaft, a fixed cam adapted at intervals to cause the engagement of said pins for turning the shaft backward, and gearing rotated by said shaft for rotating the adhesive applying rolls.

5. Adhesive applying mechanism for casing-in machines, comprising tanks movable toward and from the path of the fillers, rolls carried by the tanks for applying adhesive to the fillers, and mechanism for rotating saidrolls comprising an oscillatory rack, a gear engaged by said rack, a shaft on which said gear is loosely mounted, a pawl oscillated with said gear, a toothed wheel fixed to said shaft and engaged by the pawl, pins carried by said wheel, a pin rotatable with the pawl, a fixed cam adapted to cause the former pins to engage with the latter pin, whereby when the gear turns forward the pawl turns the shaft forward and when the gear turns backward the pins are engaged so as to turn the shaft backward, and gearing connecting said shaft and said rolls. I

6. Adhesive applying mechanism for casing-in machines, comprising tanks movable toward and from the path of the fillers, rolls carried by the tanks for applying adhesive to the fillers, and mechanism for rotating said rolls comprising an oscillatory rack, a gear engaged by said rack, a shaft on which said gear is loosely mounted, a pawl oscillated with said gear, a toothed wheel fixed to said shaft and engaged by the pawl, pins carried by said wheel, a pin rotatable with the pawl, a fixed cam timed to press the pins carried by said wheel into the path of the pin rotatable with the pawl whereby when the gear turns forward the pawl turns the shaft forward and when the gear turns backward the pins are engaged by the fixed cam so as to turn the shaft backward, worm wheels mounted to rotate with but have a horizontal movement on said shaft, worms engaged by the worm wheels, and gearing detachably connected with said worms for rotating said rolls.

7 Adhesive applying mechanism for casing-in machines, comprising tanks movable toward and from the path of the fillers, rolls carried by the tanks for applying adhesive to the fillers, and mechanism for rotating said rolls comprising a gear, mechanism for rotating said gear, a shaft rotated by the gear, worm wheels mounted on said shaft, slotted blocks movable in slots in the worm wheel hubs, rolls connected with the shaft and movable in the slots in said blocks whereby the worm wheels are rotated by but may move horizontally along the shaft, worms engaged by the worm wheels, and gearing detachably connected with said wofms for rotating the adhesive applying rol s.

8. Adhesive applying mechanism' for casing-in machines, comprising tanks movable toward and from the path of the fillers, rolls carried by the tanks for applying adhesive to the fillers, and mechanism for rotating said rolls comprising a gear, mechanism for rotating the gear, a shaft rotated by said gear, worm wheels rotatable with but longitudinally movable on said shaft, worms engaged by the worm wheels, gearing detachably connected with said worms for rotating the adhesive applying rolls, and plates supporting said worm wheels and worms and movable with said tanks.

9. Adhesive applying mechanism for casing-in machines, comprising blades for elevating fillers, tanks, rolls carried by said tanks for applying adhesive to the fillers, mechanism for rotating said rolls opposite to and then in the same direction as the travel of the fillers, mechanism for moving the tanks toward and from the path of the fillers, said latter mechanism comprising levers connected with the tanks, shafts with arms that are yieldingly connected with said levers, means for causing said shafts to oscillate synchronously, an arm adjustably connected with one of said shafts, a cam, and means connected with said arm and actuated by said cam.

10. Adhesive applying mechanism for casing-in machines, comprising blades for elevating fillers, tanks, rolls carried by said tanks for applying adhesive to the fillers, mechanism for rotating said rolls opposite to and then in the same direction as the travel of the fillers, mechanism for moving the tanks toward and from the path of the fillers, said latter mechanism comprising levers connected with the tanks, shafts with arms that are yieldingly connected with said levers, means for causing said shafts to oscillate synchronously, an arm adjustably connected with one of said shafts, and means for oscillating said arm.

CARL SCHRAMM. ERNEST WAYNE CLARK. 

